1. 安装
loading_animation_widget
flutter pub add loading_animation_widget
2. 现实效果
loading_animation_widget_usage.gif
3. 实现
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
final Color color = Colors.green;
final double size = 50;
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: ListView(
children: [
const Text('beat'),
LoadingAnimationWidget.beat(color: color, size: size),
const Divider(),
const Text('bouncingBall'),
LoadingAnimationWidget.bouncingBall(color: color, size: size),
const Divider(),
const Text('discreteCircle'),
Center(
child: LoadingAnimationWidget.discreteCircle(
color: color,
size: size,
),
),
const Divider(),
const Text('dotsTriangle'),
LoadingAnimationWidget.dotsTriangle(color: color, size: size),
const Divider(),
const Text('fallingDot'),
LoadingAnimationWidget.fallingDot(color: color, size: size),
const Divider(),
const Text('flickr'),
LoadingAnimationWidget.flickr(
leftDotColor: color, rightDotColor: Colors.red, size: size),
const Divider(),
const Text('fourRotatingDots'),
LoadingAnimationWidget.fourRotatingDots(color: color, size: size),
const Divider(),
const Text('halfTriangleDot'),
LoadingAnimationWidget.halfTriangleDot(color: color, size: size),
const Divider(),
const Text('hexagonDots'),
LoadingAnimationWidget.hexagonDots(color: color, size: size),
const Divider(),
const Text('horizontalRotatingDots'),
Center(
child: LoadingAnimationWidget.horizontalRotatingDots(
color: color,
size: size,
),
),
const Divider(),
const Text('inkDrop'),
LoadingAnimationWidget.inkDrop(color: color, size: size),
const Divider(),
const Text('newtonCradle'),
LoadingAnimationWidget.newtonCradle(color: color, size: size),
const Divider(),
const Text('prograssiveDots'),
Center(
child: LoadingAnimationWidget.prograssiveDots(
color: color, size: size),
),
const Divider(),
const Text('staggeredDotsWave'),
Center(
child: LoadingAnimationWidget.staggeredDotsWave(
color: color,
size: size,
),
),
const Divider(),
const Text('stretchedDots'),
Center(
child: LoadingAnimationWidget.stretchedDots(
color: color,
size: size,
),
),
const Divider(),
const Text('threeArchedCircle'),
LoadingAnimationWidget.threeArchedCircle(color: color, size: size),
const Divider(),
const Text('threeRotatingDots'),
LoadingAnimationWidget.threeRotatingDots(color: color, size: size),
const Divider(),
const Text('twistingDots'),
Center(
child: LoadingAnimationWidget.twistingDots(
leftDotColor: color, rightDotColor: Colors.red, size: size),
),
const Divider(),
const Text('twoRotatingArc'),
Center(
child: LoadingAnimationWidget.twoRotatingArc(
color: color,
size: size,
),
),
const Divider(),
const Text('waveDots'),
Center(
child: LoadingAnimationWidget.waveDots(color: color, size: size),
)
],
),
);
}
}
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